This apparatus measures the difference in electrical potential energy.

9.

Substance with a too high resistance for electricity to flow through it.

12.

Electrical wires should be covered in this material.

Down

2.

These particles are involved during the flow of electricity.

3.

Wires are made using this material.

4.

Substance that lets electricity flow through it.

5.

A cell contains potential ___________ ___________?

8.

Pathway through which electricity can flow.

10.

Measurement of the current strength.

11.

This energy is transferred in a light bulb.

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